Home / 1,073,152.70-1,609,729.05-647,999.90

Finding the Fourth Proportional to 1,073,152.70, 1,609,729.05 and 647,999.90

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Solution

The fourth proportional to 1,073,152.70, 1,609,729.05 and 647,999.90 is: 971,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,152.70 : 1,609,729.05 = 647,999.90 : x
  2. Step 2: Convert to fraction form
    1,073,152.70/1,609,729.05 = 647,999.90/x
  3. Step 3: Cross multiply
    1,073,152.70x = 1,609,729.05 × 647,999.90
  4. Step 4: Simplify right side
    1,073,152.70x = 1,043,104,263,427.10
  5. Step 5: Solve for x
    x = 1,043,104,263,427.10/1,073,152.70
  6. Step 6: Final answer
    x = 971,999.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.